Formation and Mechanical Properties of Pd-Si Binary Bulk Metallic Glasses

الملخص EN

Glassy spherical samples in the diameters up to 10 mm were produced in a binary Pd-Si alloy system.

These Pd-Si bulk metallic glasses (BMGs) combine high strength of about 1600 MPa and superplasticity of over 70% together.

In addition to abundant micrometer-scale shear bands, 10–20 nanometer-sized shear bands were also observed on the side surface of the deformed sample.

The excellent ductility shown by the Pd-Si BMGs is suggested to arise from the nanoscale structural inhomogeneity.